KR20100059648A - Door frame - Google Patents

Abstract

PURPOSE: A door frame which easily connects a member using a connector is provided to increase the convenience of installation by simultaneously inserting and fixing a connector which connects an edge of a vertical and a horizontal member. CONSTITUTION: A door frame(100) comprises a member(110), a connection member(120), and a elastic member and a round member(140). The member comprises a member body(111) contacted with each other. The member body has an insertion space. The guide projection is projected from the side in the insertion space. The connection part comprises a connection body. A connection body interlinks member bodies contacted with each other. The elastic member comprises an elastic body. The elastic body is formed the front of the connection body and is respectively formed in the location which corresponds to the member body inserted to perpendicular and horizontal direction. The round member is arranged in the corner edge of connector. The round member has the round surface connecting the edge of the connected member body as curve.

Description

Door frame

The present invention relates to a door frame.

In general, a door is a structure that can be opened and closed at the boundary of a space, an entrance of a building, or a place where a person enters or exits. A door, a gate, a front door, a visit, It can be divided into windows, wooden doors, wooden doors, steel doors and glass doors.

Since the door is usually located at the contact point connecting one space with the other space, the door is installed at the boundary position of the body covering the wall, wall, and the outside of the space. Doors are installed at locations that connect between buildings and rooms. In addition, the door is used in the divided space of the various furniture and the storage space closed after storage from the outside.

Doors are divided into sliding doors, sliding doors, US doors, doors, doors, corrugated doors, revolving doors, shutter doors, hanger doors, etc., depending on the structure and materials. And glass doors.

As for the door, the steel is mainly used for the exterior of the door, the entrance door, etc., and the wood is mainly used for indoor or furniture driving.

In the case of the wood described above, the main raw material is formed of wood, which is weak in strength. Thus, wood is easily broken by external impacts. In addition, wood is warped as water penetrates from the outside, and the strength of the wood is greatly degraded due to rotting of the inside of the wood tissue. Thus, wood is weak to moisture and short in life compared to steel.

The normal door is made entirely of wood. The wooden door as a whole is heavy. In addition, there is a disadvantage that the manufacturing price is high because the price of the origin of wood is increased.

In recent years, doors made of lightweight aluminum materials have been developed, and doors in which materials desired by a user are installed inside the frames have been developed and widely used.

Such a conventional door frame includes members in the transverse and longitudinal directions and a connecting body connecting them. Arrange the members in the longitudinal and transverse directions according to the size of the door frame. At each corner of the longitudinal and transversely arranged members a linkage is positioned. Transverse and longitudinal members are respectively inserted in the positioned linking body. The fastening member is fastened to each insertion part in the connecting body in which the transverse direction and the longitudinal direction member were inserted. The fastening member fastens the transverse and longitudinal members to the connecting body.

However, in the conventional door frame, the connecting body is inserted into the members in the transverse direction and the longitudinal direction, and the working process is long and the fixing work is difficult because the inserted connecting body must be fastened by the fastening member.

In addition, the members in the transverse and longitudinal direction is not in close contact with each other, there is a problem that the rattling noise is generated by the external shock, the fastening portion is easily loosened.

The problem to be solved by the present invention is to provide a door frame improved in ease of installation so that the connecting portion connecting the corners of the member in the transverse direction and the longitudinal direction is fixed at the same time as the insertion.

The door frame according to an embodiment of the present invention is located in contact with each other to the outer frame shape of the door, the member body having a space penetrated therein, protrudes in a position facing each other of the space A projection which connects the member bodies which are in contact with each other, the connecting body inserted into the space, and disposed on one side of the connecting body, each of which is positioned in a transverse direction and a longitudinal direction in which the member body is inserted. Body, protruding in the direction of the member body of the elastic body, the bending piece having elasticity, formed at the protruding end of the bending piece, the fixed piece in contact with the member body, and the corner end of the connecting body And a round face is formed to connect the edges of the connected member bodies in a curved line. And a round part, wherein the member body has a fixing groove into which the protruding pieces contacting the inside of the space are inserted, and the connection body has at least one guide groove into which the protrusion is inserted, and the guide groove includes: A tapered portion is formed to gradually reduce the cross-sectional area from the position at which the protrusion is initially inserted to a predetermined section, wherein the tapered portion is formed to be larger than the cross-sectional area of the protrusion, and the protrusion is formed in the guide groove from the tapered portion to the end of the protrusion. The binding portion is formed in the same size as the cross-sectional area of the cross section.

In addition, the corner end of the member body connected to each other is formed with a round mounting portion is formed with a corner at a right angle so that the round portion is inserted, the corner end of the connector is formed with a round coupling groove into which the round is inserted, In the center of the coupling groove may be formed a round binding groove having an enlarged cross-sectional area.

The round part is inserted into and fixed to the round installation part, a round body forming a round surface in the corner direction of the member body, protruding from one side of the round body, and coupled to be inserted into the round coupling groove. A protrusion is formed at the center of the coupling protrusion and may include a binding protrusion inserted into and fixed to the binding groove.

In addition, one side of the connecting body is formed with an elastic fixing groove for each of the elastic body is inserted and fixed in the position where the member body is inserted, the elastic fixing groove is formed in the lower portion of the elastic fixing groove inward, It may further include an insertion protrusion protruding from the lower portion of the elastic body in the direction of the connecting body, the insertion protrusion inserted into the fixing body.

In addition, the elastic fixing grooves are formed on both sides of the elastic fixing groove so as to communicate with each other more deeply, and the blowout holes are formed so as to communicate with both side surfaces of the connecting body and the member body, respectively. By inserting the elastic portion into the elastic body receiving groove, it is configured to release the coupling state of the member body and the connecting portion.

In addition, the door frame according to another embodiment of the present invention is located in contact with each other to the outer frame shape of the door, the member body having a space penetrated therein, in the position facing each other Protruding protrusions, connecting the member body in contact with each other, the connecting body is inserted into the space, is disposed on one side of the connecting body, respectively located in the transverse direction and longitudinal direction in which the member body is inserted An elastic body which is located in the center of the elastic body, which is located at the center of the elastic body, and protrudes in the direction of the member body, and is disposed at the corner end of the connecting body and has a round surface formed at the corner of the connected member body. And the member body shovels the protrusion in contact with the interior of the space. It has a fixed groove that is, the connector has at least one guide groove into which the projection is inserted on one surface, the guide groove forms a tapered portion whose cross-sectional area gradually decreases from the position where the projection is initially inserted to a predetermined section, The tapered portion is formed larger than the cross-sectional area of the protrusion, and the guide groove has a binding portion formed in the same size as the cross-sectional area of the protrusion from the tapered portion to the end of the protrusion is inserted, the protrusion is in contact with the member body The contact surface is formed.

In addition, the door frame according to another embodiment of the present invention is located in contact with each other in the door, so as to form the outer frame of the door, the member body having a space therein, the space facing each other Projections projecting in position, connecting the member body in contact with each other, the connecting body is inserted into the space, is disposed on one side of the connecting body, in the transverse direction and longitudinal direction in which the member body is inserted Located in each of the elastic body, the center of the elastic body, the protrusions protruding in the direction of the member body, are formed at both ends of the elastic body, when the member body is inserted the projections are pressed in the direction of the member body At least one fixing protrusion contacted, and disposed at the corner end of the connecting body And a round part having a round surface formed at a corner portion of the member body connected to the member body, wherein the member body has a fixing groove into which the protrusion is inserted in contact with the inside of the space, and the connecting body has the protrusion on one surface thereof. At least one guide groove is inserted, the guide groove is formed in the tapered portion is gradually reduced in cross-sectional area from the position where the projection is initially inserted into a predetermined section, the tapered portion is formed larger than the cross-sectional area of the protrusion, the guide In the groove, a binding portion is formed in the same size as the cross-sectional area of the protrusion from the tapered portion to the end where the protrusion is inserted.

According to an embodiment of the present invention, the members are easily connected to each corner of the transverse and longitudinal members forming the outer edge of the door, and thus the members are easily connected to each other, thereby reducing the time required for assembly. It can be effective.

In addition, since the transverse and longitudinal members and the connector are coupled to prevent flow, there is an advantage that there is no movement in the impact of the outside is firmly coupled.

In addition, the connecting member is provided with a fixing piece fixed by the elastic force of the leaf spring, the member in the longitudinal direction and the transverse direction is fixed by the elastic force at the same time as the insertion, the installation time is shortened.

In addition, since the curved portion of the round shape is formed at the end where the transverse direction and the longitudinal member are connected, there is an advantage that there is no sharp end at the time of installation and handling to prevent injury.

In addition, it is possible to selectively release the coupling force maintaining state of the elastic portion to enable the selective separation of the connecting body and the member body has the effect of making the door frame replacement easier.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Like parts are designated by like reference numerals throughout the specification.

Then, the door frame according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

1 is a perspective view showing a door frame according to a first embodiment of the present invention, Figure 2 is a partially cutaway exploded perspective view showing the main part of the door frame of Figure 1, Figure 3 is a perspective view showing the connecting body of Figure 1 4 is a front view illustrating the connector of FIG. 1, and FIG. 5 is a cross-sectional view taken along the line VV of FIG. 2.

1 to 5, the door frame 100 according to the first embodiment of the present invention includes a member 110, a connection part 120, an elastic part 130, and a round part 140.

The member 110 includes a member body 111 which abuts each other to form an outer frame of the door. The member body 111 is formed to have a shape of an outer frame according to the shape and size of the door. The door usually has a rectangular frame shape. Therefore, the member body 111 is arranged in a rectangular frame shape, and has a corner that is in contact with each other horizontally and vertically.

In the embodiment of the present invention, the rectangular frame shape is applied according to the conventional shape of the door, but may be modified in various shapes.

The member body 111 has an insertion space 112 penetrated therein. At least one guide protrusion 113 protrudes from an inside of the insertion space 112 on a surface facing each other in the vertical and horizontal directions. The guide protrusion 113 guides the connection part 120 inserted into the insertion space 112, and is firmly fixed in the insertion space 112. The fixing groove 114 is formed in the insertion space 112 in the direction perpendicular to the guide protrusion 113. The fixing groove 114 is formed at a position at which the front surface of the connecting portion 120 is inserted, which is a position at which the elastic portion 130 can be inserted. At the end of the corner where the member body 111 is in contact with each other, a round mounting portion 115 is formed in which the round portion 140 is installed. Round installation portion 115 is formed in a direction perpendicular to the end of the member body 111 abuts each other.

The connection part 120 includes a connection body 121 connecting the member bodies 111 abutting each other in a rectangular frame shape. The connecting body 121 has a right angle shape into which the member body 111 arranged vertically and horizontally is inserted. An elastic fixing groove 122 to which the elastic part 130 is fixed is formed at the front surface of the connecting body 121. The elastic fixing grooves 122 are formed in directions corresponding to the member bodies 111 inserted in the vertical and horizontal directions of the connecting body 121, respectively. An elastic body insertion groove 123 is formed inward of the elastic fixing groove 122. Guide grooves 124 are formed at positions corresponding to the guide protrusions 113 of the connecting body 121. The guide groove 124 is formed at a position to be inserted and fixed to the position and quantity of the guide protrusion 113. The guide grooves 124 are formed in vertical and horizontal positions and abut against each other at the corner ends. At the corner end of the connector 121 is formed a round coupling groove 127 to which the round part 140 is fixed. The round coupling groove 127 is formed with a round binding groove 128 having an enlarged cross section in the center. Therefore, the connecting body 121 is inserted into the corners of the member body 111 in contact with each other in the rectangular frame shape. The connecting body 121 connects the member bodies in contact with each other.

In the guide groove 124, a taper portion 125 is formed from an initial position at which the guide protrusion 113 is inserted to a predetermined position. The tapered portion 125 is formed larger than the cross-sectional area of the guide protrusion 113. The tapered portion 125 has a reduced cross-sectional area from the initial insertion position to the predetermined position. In the guide groove 124, a binding portion 126 is formed from a predetermined position to a position in contact with each other. The binding part 126 has the same size as the cross-sectional area of the guide protrusion 113. Therefore, the guide protrusion 113 is easily inserted through the tapered portion 125 having a large cross-sectional area. The guide protrusion 113 is inserted into the binding portion 126 via the tapered portion 125. In the binding portion 126 having the same cross-sectional area as the guide protrusion 113, the flow of the guide protrusion 113 is prevented. In addition, the binding unit 126 and the guide protrusion 113 are firmly bonded to each other as they have the same cross-sectional size.

The elastic part 130 includes an elastic body 131, a bent part 132, and a fixing piece 133. The elastic body 131 is formed on the front surface of the connecting body 121 and is formed at positions corresponding to the member body 111 inserted in the vertical and horizontal directions, respectively. The elastic body 131 is inserted and fixed in the elastic fixing groove 122. The bent portion 132 is curved to protrude in the direction of the member body 111 of the elastic body 131. The bent portion 132 has elasticity and is pressed when the member body 111 is inserted. The fixing piece 133 is formed at the end of the bent portion 132 in the direction of the member body 111. The fixing piece 133 is connected to the bent portion 132 having an elastic force and can be moved by elasticity. When the member body 111 is inserted, the fixing piece 133 and the bent portion 132 enter inwardly by elasticity. When the member body 111 is inserted and the fixing piece 133 is positioned in the fixing groove 114, it is unfolded by elasticity. Therefore, the fixing piece 133 is inserted into the fixing groove 114. That is, the connection body 121 is fixed to the member body 111 by the elasticity of the elastic part 130 and inserted at the same time.

The insertion protrusion 134 protrudes from the elastic body 131 at one side in the direction of the elastic fixing groove 122. The insertion protrusion 134 is inserted into and fixed to the elastic insertion groove 123. The elastic body 131 is inserted into the elastic fixing groove 122, and the insertion protrusion 134 is inserted into the elastic body insertion groove 123. Therefore, the elastic body 131 is firmly inserted and fixed to the connecting body 121.

The round part 140 includes a round body 141 and a coupling protrusion 143. The round body 141 has a round face 142 curved around its outer circumference. Coupling protrusion 143 is protruded on one side of the round body 141. The coupling protrusion 143 is coupled to the round coupling groove 127 of the connecting body 121. When the coupling protrusion 143 is coupled, the round body 141 is located at the round installation part 115. A round part 140 having a curved round surface 142 is installed between the member bodies 111 positioned at right angles. The round end 142 is located at the corner end of the combined member body 111. Therefore, the corner end of the member body 111 is made of a curved shape.

In the center of the coupling protrusion 143, a binding protrusion 144 having an enlarged cross-sectional area is formed. The binding protrusion is inserted and coupled to the round binding groove 128. As the coupling protrusion 143 is inserted and fixed together with the binding protrusion 144 to the connecting body 121, the fixing force of the round body 141 is improved.

A door frame according to a second embodiment of the present invention will be described with reference to FIG. 6.

6 is an exploded perspective view showing a door frame according to a second embodiment of the present invention.

Referring to FIG. 6, the door frame 100 according to the second embodiment of the present invention includes a member 110, a connection part 120, an elastic part 130, and a round part 140. Here, components that are substantially the same as those of the door frame 100 of the first embodiment shown in FIGS. 1 to 5 will be omitted, and only different configurations will be described in detail.

The fixing groove 114 is formed in the insertion space 112 of the member body 111. The fixing groove 114 is formed at a position at which the side surface of the connecting body 121 is inserted. An elastic fixing groove 122 is formed at a side of the connecting body 121. The elastic fixing groove 122 is provided with an elastic body 131 having a fixing piece 133. The elastic body 131 is fixed to the side of the connecting body 121. When the member body 111 is inserted into the connecting body 121, the fixing piece 133 is pressed. As the pressed fixing piece 133 is inserted into the fixing groove 114, the connecting body 121 is fixed to the member body 111. Therefore, the elastic body 131 may be installed on the side surface of the connecting body 121.

The door frame according to the third embodiment of the present invention will be described with reference to FIGS. 7 and 8.

7 is an exploded perspective view illustrating a door frame according to a third exemplary embodiment of the present invention, and FIG. 8 is a sectional view taken along line VII-VII of FIG. 7.

7 and 8, the door frame 100 according to the third embodiment of the present invention includes a member 110, a connection part 120, an elastic part 130, and a round part 140. Here, components that are substantially the same as those of the door frame 100 of the first embodiment shown in FIGS. 1 to 5 will be omitted, and only different configurations will be described in detail.

The elastic part 130 includes an elastic body 131 and a protrusion 135. The elastic body 131 is inserted and fixed in the elastic fixing groove 122. The protrusion 135 is located at the center of the elastic body 131. The protrusion 135 protrudes toward the member body 111. The contact surface 136 is formed at the protruding end of the protrusion 135. The protrusion 135 has elasticity.

Therefore, when the member body 111 is inserted into the connecting body 121, the protrusion 135 is pressed. The pressed protrusion 135 is unfolded in the fixing groove 114 position. When the protrusion 135 is extended, the contact surface 136 is in contact with the inner surface of the fixing groove 114. When the contact surface 136 contacts the fixing groove 114, the protrusion 135 is inserted into the fixing groove 114. When the member body 111 is inserted into the connecting body 121, the protrusion 135 of the elastic part 130 is inserted into the fixing groove 114. That is, the member body 111 is inserted into the connecting body 121 and fixed at the same time.

As shown in FIG. 11 or FIG. 12, the elastic fixing grooves 122 are formed in both sides of the elastic fixing grooves 122 so as to communicate with each other so as to communicate with the both sides of the connecting body 121 and the member body 111, respectively. To form.

This configuration is a constituent means for releasing the engaged state after close coupling between the connecting body 121 and the member body 111 via the elastic part 130.

That is, by inserting the take-out bar 129a separately provided in the blowout hole 115 so that the elastic portion 130 is separated from the elastic fixing groove 122, the elastic portion 130 is inserted into the elastic receiving groove 123. At this time, the elastic body receiving groove 123 is formed deeper than the elastic fixing groove 122 to release the support force of the connecting body 121 and the member body 111 through the elastic portion 130 so that the member body 111 and the connecting portion 120 can be separated.

A door frame according to a fourth embodiment of the present invention will be described with reference to FIGS. 9 and 10.

9 is an exploded perspective view illustrating a door frame according to a fourth embodiment of the present invention, and FIG. 10 is an sectional view taken along line X-X of FIG. 9.

9 and 10, the door frame 100 according to the third embodiment of the present invention includes a member 110, a connection part 120, an elastic part 130, and a round part 140. Here, components that are substantially the same as those of the door frame 100 of the first embodiment shown in FIGS. 1 to 5 will be omitted, and only different configurations will be described in detail.

The elastic part 130 includes an elastic body 131, a protrusion 135, and a fixing protrusion 137. The elastic body 131 is inserted and fixed in the elastic fixing groove 122. The protrusion 135 is located at the center of the elastic body 131. The protrusion 135 protrudes in the direction of the member body 111. The protrusion 135 has elasticity. The fixing protrusion 137 is located at both ends of the elastic body 131. Fixing protrusion 137 is made of a form that can be fixed, such as at least one wedge.

Therefore, when the member body 111 is inserted into the connecting body 121, the protrusion 135 is pressed. When the protrusion 135 is pressed, both ends of the elastic body 131 are bent by elasticity toward the member body 111. Fixing protrusions 137 formed at both ends press the member body 111. The member body 111 is continuously inserted into the connecting body 121 while maintaining the pressing state of the fixing protrusion 137. When the member body 111 is inserted, the protrusion 135 of the elastic body 131 is positioned in the fixing groove 114. The protrusion 135 of the elastic body 131 is inserted into the fixing groove 114 while being extended by elasticity. At this time, the fixing protrusions 137 formed at both ends of the elastic body 131 are positioned around the fixing groove 114. The protrusion 135 and the fixing protrusion 137 inserted into the fixing groove 114 fix the member body 111 to the connecting body 121. That is, the member body 111 is inserted into the connecting body 121 and fixed at the same time.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a perspective view showing a door frame according to a first embodiment of the present invention.

2 is an exploded perspective view of part of the main frame of the door frame of FIG.

3 is a perspective view of the connecting body of FIG.

4 is a front view showing the connector of FIG.

5 is a cross-sectional view taken along the line V-V in FIG. 2.

Figure 6 is an exploded perspective view showing a door frame according to a second embodiment of the present invention.

7 is an exploded perspective view showing a door frame according to a third embodiment of the present invention.

8 is a cross-sectional view taken along line VII-VII of FIG. 7.

9 is an exploded perspective view showing a door frame according to a fourth embodiment of the present invention.

10 is a cross-sectional view taken along the line X-X of FIG.

11 is a perspective view showing another embodiment of the door frame according to the first embodiment of the present invention.

12 is a perspective view showing another embodiment of the connecting portion of the door frame according to the first embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: frame 110: member

111: member body 112: guide protrusion

113: fixing groove 114: round installation

115: blowout hole 120: connecting portion

121: connecting body 122: elastic fixing groove

123: elastic insertion groove 124: guide groove

125: taper portion 126: binding portion

127: round coupling groove 128: round binding groove

129: elastic body receiving groove 129a: ejection bar

130: elastic portion 131: elastic body

132: bend portion 133: fixed piece

134: protrusion 136: contact surface

136: fixing part 137: fixing protrusion

140: round part 141: round body

142 round face 143: engaging projection

144: binding portion

Claims (7)

In the door, Is positioned in contact with each other to form the outer frame of the door, the member body having a space penetrated therein, Protrusions protruding at positions facing each other in the space, A connecting body connecting the member bodies in contact with each other and inserted into the space, Is disposed on one side of the connecting body, the elastic body which is located in the transverse direction and the longitudinal direction, respectively, the member body is inserted, A bending piece protruding in the direction of the member body of the elastic body, and having a bending elasticity, A fixed piece formed at the protruding end of the bent piece and in contact with the member body; and The round portion is disposed at the corner end of the connecting body, the round portion is formed to connect the corner of the connected member body in a curve Including; The member body has a fixing groove that is inserted into the protruding piece in contact with the interior of the space, The connecting body has at least one guide groove into which the protrusion is inserted, The guide groove is formed with a tapered portion whose cross-sectional area gradually decreases from a position at which the protrusion is initially inserted to a predetermined section, wherein the tapered portion is formed larger than the cross-sectional area of the protrusion, The guide groove is a door frame, characterized in that the binding portion is formed in the same size as the cross-sectional area of the projection from the tapered portion to the end of the projection is inserted. In claim 1, The corner end of the member body connected to each other is formed with a round mounting portion is formed with a corner at a right angle so that the round portion is inserted, The corner end of the connecting member is formed with a round coupling groove into which the round is inserted, The door frame, characterized in that formed in the center of the round coupling groove is a round binding groove with an enlarged cross-sectional area. In claim 2, The round part The round body is inserted and fixed to the round installation portion, forming a round surface in the corner direction of the member body, Protruding on one side of the round body, the engaging projection is fixed to the round coupling groove, And Is formed in the center of the coupling projections, door frame, characterized in that it comprises a binding projection that is fixed to the binding groove. In claim 1, One side of the connecting body is formed with an elastic fixing groove for each of the elastic body is inserted and fixed at the position where the member body is inserted, An elastic fixing groove is formed in the lower portion of the elastic fixing groove inward, A door frame protruding from the lower portion of the elastic body in the direction of the connecting body, the insertion protrusion being inserted into the elastic fixing groove. The method of claim 1, Both sides of the elastic fixing groove are formed to communicate with the elastic body receiving groove more deeply to form a blowout hole in communication with each of the both sides and the member body of the connecting body by inserting a blowout bar provided separately in the blowout hole so that the elastic part is pushed. The door frame, characterized in that configured to release the coupling state of the member body and the connection by allowing the elastic portion to be inserted into the receiving groove. In the door, Is positioned in contact with each other to form the outer frame of the door, the member body having a space penetrated therein, Protrusions protruding at positions facing each other in the space, A connecting body connecting the member bodies in contact with each other and inserted into the space, Is disposed on one side of the connecting body, the elastic body which is located in the transverse direction and the longitudinal direction, respectively, the member body is inserted, Located in the center of the elastic body, a protrusion protruding in the direction of the member body, and Is disposed at the corner end of the connecting body, and includes a round portion is formed with a round face to the corner portion of the member body connected, The member body has a fixing groove that is inserted into the protrusion in contact with the interior of the space, The connecting body has at least one guide groove into which the protrusion is inserted, The guide groove is formed with a tapered portion whose cross-sectional area gradually decreases from a position at which the protrusion is initially inserted to a predetermined section, wherein the tapered portion is formed larger than the cross-sectional area of the protrusion, The guide groove has a binding portion formed in the same size as the cross-sectional area of the projection from the tapered portion to the end of the projection is inserted, The protruding portion is a door frame, characterized in that the contact surface is formed in contact with the member body. In the door, Is positioned in contact with each other to form the outer frame of the door, the member body having a space penetrated therein, Protrusions protruding at positions facing each other in the space, A connecting body connecting the member bodies in contact with each other and inserted into the space, Is disposed on one side of the connecting body, the elastic body which is located in the transverse direction and the longitudinal direction, respectively, the member body is inserted, Located in the center of the elastic body, the protrusion protruding in the direction of the member body, Is formed at both ends of the elastic body, when the member body is inserted at least one fixing projection which is pressed in contact with the direction of the member body, the projection is pressed, and Is disposed at the corner end of the connecting body, and includes a round portion is formed with a round face to the corner portion of the member body connected, The member body has a fixed groove that is inserted into the protrusion contacting the interior of the space, The connecting body has at least one guide groove into which the protrusion is inserted, The guide groove is formed with a tapered portion whose cross-sectional area gradually decreases from a position at which the protrusion is initially inserted to a predetermined section, wherein the tapered portion is formed larger than the cross-sectional area of the protrusion, The guide groove is a door frame, characterized in that the binding portion is formed in the same size as the cross-sectional area of the projection from the tapered portion to the end of the projection is inserted.

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